FWD WHEELCHAIRS | PROCEDURE 11 | ||
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CHARGING BATTERIES (FIGURE 4)
WARNING
Never attempt to recharge the batteries by attaching cables directly to the battery termi- nals or clamps. Always use the recharging plug located on the side of the wheelchair frame.
DO NOT attempt to recharge the batteries and operate the power wheelchair at the same time.
During use and charging, unsealed batteries will vent hydrogen gas which is explosive in the right concentration with air.
CAUTION
Always charge new batteries fully BEFORE initial use or battery life will be reduced.
NOTE: As a general rule, batteries should be recharged daily to assure the longest possible life and minimize the required charging time. Plan to recharge the batteries when it is anticipated the wheelchair will not be used for several days.
The range per battery charge using recommended bat- teries should be approximately 5 to 9 hours of typical op- eration. Extensive use on inclines or age of batteries may substantially reduce per charge mileage.
Description and Use of Battery Chargers
The charger automatically reduces the amount of charge from an initially high rate to a zero reading at a fully charged condition.
SHUTOFF PROCEDURE.
A.For Models RANGER IIBASIC and RANGER IISTANDARD
B.For RANGER II250 SERIES
There are some basic concepts which will help you understand this automatic process:
The amount of electrical current drawn within a given time to charge a battery is called “charge rate”. If, due to usage, the charge stored in the battery is low, the charge rate is
high. (FOR MODELS RANGER IIBASIC and RANGER
IISTANDARD - thisisindicatedbythegreenlightonthecharger. Initially, the green light will stay illuminated for a short period
of time followed by a longer period of off time.)
As a charge builds up, the charge rate is reduced, and the following will occur:
A.For Models RANGER IIBASIC and RANGER IISTANDARD- the green light will stay illuminated for a longer period of time followed by a shorter off time.
B.For Model RANGER II250 SERIES - the battery charger rate decreases to a "trickle charge".
NOTE: If performing the charging procedures indepen- dently, READ and CAREFULLY follow the individual in- structions for each charger (supplied or purchased).
NOTE: If charging instructions are not supplied, consult a qualified service technician for proper procedures.
Required Items:
TOOL | QUANTITY | COMMENTS |
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Battery Charger | 1 | Supplied |
✪ Extension Cord | 1 | Not Supplied |
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1.Attach the battery charger connector to the charger cable/battery harness.
2.Plug the charger’s AC power cord, or extension, into the grounded 120 VAC wall outlet.
3.Wait until charging is complete.
NOTE: Allow eight (8) hours for normal charging. Larger batteries (greater than 55
NOTE: RANGER IIBASIC and RANGER IISTANDARD ONLY
-If the charger operates for sixteen (16) hours and is unable to fully charge the batteries, an internal timer turns the charger off and begins to fast blink the green light.
NOTE: If the batteries need to be charged more often or take longer to charge than normal, they may need to be replaced. Contact a qualified technician for service.
Battery Charger
Connector (on side
of Wheelchair)
From Battery Charger
NOTE: Position of Battery Charger Connector may vary depending on wheelchair options.
FIGURE 4- CHARGING BATTERIES
REPLACING BATTERIES
WARNING
Most batteries are not sold with instructions. How- ever, warnings are frequently noted on the cell caps. Read them carefully, otherwise injury or damage can occur.
NOTE: Invacare recommends that both batteries be re- placed if one (1) battery is defective.
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